Quick thoughts on Twitter.DJ:
I’m pretty sure Twitter won’t be very happy use of their name in Twitter DJ.
I still think it’s a very bad idea to spam your followers with separate track name tweets. I used follow Richie Hawtin on twitter until he started posting track names every few minutes. How about post a link to a tracklist every hour instead? Or a link to a tracklist page that automatically updates itself.
I do like the idea behind twitter.dj. Gives you a birds eye view of who is playing what around the world. And you can even preview these tracks. As noted previously Twitter won’t be happy about this name, and I expect the URL will change soon.